Vista is still very early on. Just like when XP came out, no one used it. You have to wait for Microsoft to get feedback from users, so they change it in a way it suites peoples wants and needs.
I'm not adopting it until:
It has features I need, want or must have. (I do like the new look, but old software (i.e games) don't run so well)
or
XP becomes to old support current hardware and software.